Overseas this evening and to that desperate race to find survivors below the rubble of massive clothing factory in bangladesh. Crews working around the clock are still finding survivors. Tonight a new development. Workers known for deplorable conditions are demanding changes from factory owners and many of their clients in the west. Reporter: It's the latest sign of hope. This young boy, thirsty and shell-shocked, is one of nearly 30 survivors pulled from the debris today. Rescuers say they can still hear faint voices of more people who are trapped. "I went down and found 15 more people still alive," this rescue worker says. We can rescue them later today." The streets of the capital are now filled with rage, as angry workers, many making barely a dollar a day, protest unsafe working conditions. Officials responded with several arrests, accusing the buildings' factory owners of knowing giant cracks had appeared but still ordering everyone back inside. Factories in places like bangladesh are giving the western retailers what they're asking for. Extremely low cost and fast production but that comes at a price. Reporter: America's clothing imports from bangladesh have skyrocketed in recent years, and now total more than $4 billion a year. Many are asking whether american companies knew standards were being violated. Reporter: As for the building's owner he has gone into hiding and even at this late hour rescuers are digging away hoping for more survivors.

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